In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the following data were obtained: [NH3], M 1.36×10-2 6.80×10-3 3.40×10-3 1.70×10-3 seconds 0 1000 1.50×103 1.76×103 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.36×10-2 M is s and when the starting concentration is 6.80×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 1000 s is M s-1. (3) The average rate of disappearance of NH3 from t = 1000 s to t = 1.50×103 s is M s-1.
In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the following data were obtained: [NH3], M 1.36×10-2 6.80×10-3 3.40×10-3 1.70×10-3 seconds 0 1000 1.50×103 1.76×103 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.36×10-2 M is s and when the starting concentration is 6.80×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 1000 s is M s-1. (3) The average rate of disappearance of NH3 from t = 1000 s to t = 1.50×103 s is M s-1.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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In a study of the decomposition of ammonia on a platinum surface at 856 °C
NH31/2 N2 + 3/2 H2
the following data were obtained:
| [NH3], M | 1.36×10-2 | 6.80×10-3 | 3.40×10-3 | 1.70×10-3 |
| seconds | 0 | 1000 | 1.50×103 | 1.76×103 |
Hint: It is not necessary to graph these data.
(1)
The observed half life for this reaction when the starting concentration is 1.36×10-2 M is s and when the starting concentration is 6.80×10-3 M is s.
(2)
The average rate of disappearance of NH3 from t = 0 s to t = 1000 s is M s-1.
(3)
The average rate of disappearance of NH3 from t = 1000 s to t = 1.50×103 s is M s-1.
(4)
Based on these data, the rate constant for this
order reaction is M s-1.
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